Roller side bearing.



A. STUUKL ROLLER SIDE BEARING.

APPLICATION FILED JULY 25, 1912.

1 096 473, Patented May 12, 1914.

L SHEBTS-SHEET l,

i :11: 4 FIGhB WFT'NESSES. )NVENTOR.

A. STUUKI.

ROLLER SIDE BEARING.

APPLICATION I'ILED JULY 25, 1912 1,096,478. Patented May 12,1914.

2 SHEETS--SKEET 2.

WITNESSES. INVENTOR.

am 601* M Java ARNOLD STUCKI, OI? PITTSBURGH. PENNSYLVANIA.

ROLLER SIDE BEARING.

'1 135N547; Specification of Letters Patent.

Application filed July 25, 1912.

Patented May 12, 1914. Serial No. 711,456.

lie it known that l, ARNOLD S'ro'oiu, a resident of Pittsburgh. in the county of Allegheny and State of l ennsylvaniu, have invented n new and useful Inmrovement in Roller Side Bearings, of which the tollowing is a specification.

This invention relates to side bearings for railway cars.

The object is to provide a side hearing which is przn-ticaliy frictionless under all service conditions, whether normal or ahnormal, and which performs all of the other necessary functions of side bearings, which is eliicient and durable in service, and which is very simple in construction and, therel'ore, inexpensive both as to first cost -z fl as to lip-keep:-

The invention comprises a side bearing constructed and urranc'ed as hereafter de; scribed and claimed.

In the accompanying drawingsFigure 1 is a plan view of one form of the bearing; Fig. 2 is in part a side view and in part a vertical longitudinal section thereof: Fig. 3 is in part an end view and in part a vertical cross section thereof; Fig. +lis a plan view showing a modification; lii gi 5 is in part a side view and in part a vertical longittidinal section. thereof; and hi o is u pinn view of still another modilicatiorr In the drawings the side hearing is shown adapted for attuclnnent to a straight lruolt holster, but it can. be readily adapted to a tapering truck holster.

The hearing: comprises a suitable t'ruine or honking 1 having its lower face cOrresiionth ing to the face. of the bolster 2 to which it is attached. This frame or housing is pro vided with a, bottom it side Wulls or bar riers l, end while or hurriers and with shitahle cars 6 perforated for the reception of riiets or bolts for securing the same to the holster. Thehottonrprovides a suitable bearing surface for the roller 8, which hearing surface may be either integral with the bottom; orformrd bw' a separate hardened steel plate 9 secured thereto by rivets it) or thle like. The sideiand enclivalls or barriers confine the roller and prevent itit'rom jun1ping out odhth'e housing under normal operuting? conditions. Said walls or barriers are, tlugrctore, of i very material heiht, extendin gfifuiriyclose to the bolt of't e roller 8, as alumni, and theend wait .8 0r herriers have their upper portions substantially vertical so that the roller cunnol: roll up out of the sunur,=-=:1id rud walls forming a stop to limit the travel of the roller in both dircctio'lr-i. The side and end walls have broad linttop edges which will form an cliicicut side hearing even it the roller should he lost in a wreck or for other cause.

'lo pron-lit the housing from accumulatinn dirt and, tlwrcl'oro, clogging the travel oi the roller, the walls arc preferuhlv ol open or skeleton construction. the end walls being provided with large openings .11. extcnding' tor the hill width of the housing and for a cousidcrubie distance upwardly, while the side walls l are provided with large openings [2 ut the central portion thereof. The result is that the barriers are pl'tt flll'tllhY .---uppm'tcd upon lour corner portions n columns 11'} with large openings both at the level of the bearing surface at the ends and sides through which snow, ice. dust r other foreign matter can rcudily cscape so as to prevent clogging the roller. The side walls or barriers are strengthened and stili'rncd by horizontal ribs or flanges .lt und \crtiral ribs or flanges 15.

The rollcr $4 is preferably a plain fur-ed cvliudrirul roll. us shown although it (lcsired i! may be slightly conical r tapered and the hiiu inn' urved on an arc to correspond ther with. The bearing surface 9 is. under loud. pcrlcrtlr hwcl from end to end so that the rollci' cull trawl thereon without i'rirti ri and without the ncrcssity o't' lilting the our body as it rolls toward its ends as is ihr use uilh sidr hrorings in which the bearing surface for the roller is inclined from its center upwardly toward its ends. Consequently,'thc roller travels very freely, rolling practically without friction and without lifting or lowering its center of ernritr. and without being obliged to lift any purl. of the car body. it. therefore, permits much flctl swiveling of the trarli ninlcrncutli tlu: car body than that type of hearing: in which the roller. as it more l'rorn the center toward the ends is compolled to roll up an incline, it is desirtblr,

however, to provide suitable means for returning the roller to central position in the housing when the holsters separate, in order to be in proper position when the holsters again come together. On account of the level or horizontal character of the bcariru: surface 1) the roller will not nutonmthrally roll to central position upon separation of 'central position toward either end it dopresses these springs, placing them under .tension so that as soon as the bolster separates the recoil of the springs causes the roller to roll by gravity to central positlon,

as will be readily apparent. The springs 18in Figs. 1, 2 and 3 are held in position by providing them centrally with the de pressed port-ions 19 which are clamped be tween the bottom 3 of the housing and lat eral projections 20 on the wearing plate .9. A spacing or filling plate 21 is preferably placed between the bottom 3 of the housing and the wearing plate 9. If'desired, the springs 18 and spacing or filler plate 21 can be made integral, or, in other words, a single integral plate can have the springarms 18 slit therefrom and bent to the form shown so as to project upwardly in the cut away' corner portions of the wearing plate.

Figs. 4 and 5 show a modification wherein a single spring plate 22 is secured to the base 3 of the housing by means of rivets 23 and has portions 18 slit from 'the body at each corner and bent upwardly to form the inclined spring arms. In this case the spring arms 18 also become portions of the bearing-.s'urface when depressed bythe roller traveling over the same, while in Figs. .1, 2 and3 the spring arms are merely depressed below the lower surface of the wearing plate 9, and do not contact with the base and, therefore, strictly speaking, do not form a portion of the bearing surface.

lFig'G illustrates a modification in which a single spring plate 22* is employed, having its end portions bent upwardly for theentire width, instead of having portions at the corners slit,.as in Fig. 4, and bent upwardly.

In all of the modifications the centering means comprises plate springs forming spring arms lying at each side of the transverse center of the bearing surface, and inclined upwardly toward their ends, in such position that when the roller travels toward either end of the bearing the spring-arm or arms on that side of the roller are depressed and placed in tension and serve by their recoil to cause the roller to return by gravity to central position whenever the bolsters separate.

/Vith all forms of the bearing a plain faced roller is free to travel upon a level bearing surface, without friction and withnoses-7s out being compelled to either rise or fall as it rolls. with the swiveling of the truck with the greatest facility, and by reducing friction between the truck and car body, assists the free swiveling of the truck under the car body. All forms provide very simple and easily applied means for returning the roller to central position separate.

What I claim is:

1. A side bearing for railway cars, comprising a housing or frame for the lower bolster and having its bottom forming a bearing surlace, a roller coiiperating with said bearing surface, and members projecting upwardly from the bottom of said housing, said members being inclined downwardly from the ends toward the center thereof when the roller is without load and each thereof being arranged to yield when the roller travels under load along said hearing surface toward one end of-the-housing and serving to return the roller to centra position.

i A side bearing for railway cars comprising ahousing for thelower bolster and provided with side and end retaining walls .or barriers and having its bottom forming a bearing surface level from end to end, a. roller in said housing free to roll on said bearing surface, and spring members at the bearing surface inclined u warclly from the center toward the ends 0 the bearing sur roller in said housing free to roll on said bearing surface, and a spring plate rigidly secure intermediate its ends to the housing and having end portions inclined/upwardly toward the ends of the housing and arranged to be depressed by the roller as it travels toward the ends of the housing and serving to return the roller 'to central position when the bolsters separate.

4.. A. side bearin for railway cars comprising a housing For the lower bolster and provided with side and end retaining walls or barriers and having its bottom forming a I bearing surface level from end to end, a roller in said housing free to roll on said bearing surface, and separatelyactin upwardly inclined plate springs normally yi above the bearing surface and each arran lid to be ressed independently of the ot er Consequently, the roller travels when ever the bolsters 01' tho housing and serving to return the 'roller to ventral position when the bolsters separate.

5. A side hearing for railway cars comprising, a housing for the lower bolster and provided with sidand end retaining barriers and having a bottom forming a hearing surface level from end to end. a roller in said housing free to roll on said hearing sur face. and a spring member having a portion rigidly and immm'ahly secured to said bot tom and havingupwardly inclined end portions normally lying above said bearing surface and arranged to yield as the roller rolls tl iereover.

ti. side bearing for railway oars c0mprising a housing adapted to. be secured to l I l l l l y the lower holster and provided with side and end retaining barriers and having a bot tom. a wearing plate secured to said bottom and forming a' hearing surface level from end to end, a roller in said housing free to roll on said bearing surface, and a spring member seem-ed between said wearing plate and the bottom of the housing and having upwardly inclined end portions normally l ving ahore the surface of said wearing plate.

In testimony whereof, I have hereunto set my hand.

Emma L. HYDE, Mun- E. CAHOON. 

